99.36: What happens to the inertia of bzx;jk aj5w4x ia 418van object when its velocity is doubled?

  02.14: An intrinsic propert :lqp.+z rr5sd)aui5u y of matter is one that does not depend on the quantity of matter present. Which .q5u lu5rdpi s)a:z+r of the following properties is NOT an intrinsic property?

  04.16: A 20 kg boulder rests on the surfacbj* 0 fp.;0hcjacs s9:b(kz gre of the Earth. Assume the Earth has masj0h*fcr.( ;9sp jkabz0b :gc ss $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is ind +yguvv 06rn1 free fall near the surface of the Earth. What is the magnitude of the gravitational force acting on the y1d +ur vgvn06earth by the sphere? The Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocit -s68dpwex/nfgv a .*ry to increase while its acceleration decvr gw ps*/e -8a6f.dnxreases?

  00.11: A certain particle undergoes erratic motion. At evc xki4+7/el kcery point in its motion, the direl+e c4ki cx/k7ction of the particle’s momentum is ALWAYS

  17.14: A block is suspended in the air at the end of a string held by ap8d x,s:t5ku : 8nayyl person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices correctly identifies thenl,ku8 xda8 yystp: :5 Newton’s Third Law pair force to the force of the string on the block?

  07.18: In which one of the following situations is the ujzd3n(qj8w: net force constantly zero on t8uj (3zj qdnw:he object?

  13.28: An object is in free fall close to the ground.c;2*qv) )p ;w.qyo(u *vuyd* eyjifmeirm/:v A person intervenes and slows the object uniformly v )u/i *;*y.fyo)ey*qrci j dqempv ;m2uwv(: to rest. Which one of the following statements must be true about the magnitude of the acceleration of the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equilibrium has tkyq;n9t; oa* r t:sch*(ua5hjhree forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude ory*k:;h( 9jh ;5cqtn*toa us af the resultant ofF1 and F2 is

  01.07: A force of 6 Neu4.zw+on l4rhn2v b5ywtons and a force of 10 newtons can be combine to form a result. wnry bl42ho4+5u nzvant with a magnitude of which of the following

  10.06: Which of the following statedtgtlw 9 b0x-wwl3v- 7ments is most closely associated with Newton’tltgwvl9b-w0 d w3-x7s Third Law of Motion?

  95.06: The reaction forc /ikp27ttq+;2sqpe w ve does not cancel the action force because:

  14.14: A box rests on q*g 5i1u7 48zfybfxspthe floor of an elevator. The elevator is accelerating upward. Which one of the following choices best represents the Newton’s Third Law pair force to the gravitational force acting on t qpyu1bf8 fgx*4zs7i5 he box by the Earth?

  15.15: A skydiver falls downward through the air with coio1vv3ehr c/jfx+zbtxz;7 1u 5ctq54nstant speed. Which one of the following choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydi1zxc+h5 ; v uqbtt/5 jvx71 crof3ei4zver during the fall?

  06.08: A baseball is t1t uzyxb mm5 at1(6n+qhrown by a pitcher with a speed of 35 m/s. The batterswib5u y(atxt1 6nz+q1m mngs and hits the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of m6*06la-zib q g fpw7dv;iwg2the book is a calculator, also at rest. Which one of the following choices is the Newton’s Third Law pair force to the force that the table exerts on them gi;l7bd06 qvw* fa2-p6izgw book?

  05.06: The students in a Physics I class were in lab conducting an experime l8zmi v9,43fm pgb-u5sw6nlt nt related to 69m3iznpbt-v8, ls5lm4 ufw gNewton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled while at the same time thhdkwpw;3*n 2fzp d i/*e mass of the object was halved,then the accel*wip3fp wh/2*k dzn; deration of the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from rest tk4kxc0) 7wopm o a speed of 20 m/s in 10s. The magnitude of the )4 0ko7wkpxmc net force accelerating the car is:

  99.05: A tractor-trailer truck is traveling d(9opp*f9.gr)xsuksmw2b ; i down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward,x9mo) 9(wsu*gbd2.si;krfp p the force that the trailer applies on the tractor is

  99.16: Which of the following ptx4b/rd9cs;+w/k8g (lmv liz , xiy;yrinciples best explains why large tractor-trailer trucks generally acceleraly l + imvcktb yd/ irs8x4w(;9zx/g;,te much more slowly that automobiles?

  99.19: A 50 kilogram skaterk,kn 0 rw,i.sgo*+rq p at rest on a frictionless rink throws a 2 kilogram ball, giving the ball a vqp.*wrr0 n,+oi skg, kelocity of 10.0 m/s. Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth with a weight of 1 x)jwc()h-cwi(( btxm00 newtons is accelerated tj) xm c)wibc(((xh-wat $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is )go9 6/kpersbbps; / qjjo59maccelerated from rest by a constant force of 2400 N. What is the speed of the car 8.0 s after spk/;/9bqb jjo)g5r som 6p e9beginning?

  98.32: A 3.0-kg block with initial speed 4.0 m/s slides across a rough horizoyh 7dv 3ckahm 1 9lefol+c346ontal floor before coming to rest. The frictional force acting on the bloc vca7mchhlf9d3 y kl3e4o1+6ok is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s sliddi,l 0vbgsp/-es 8.0 m across a rough horizontal floor before coming to rest. The coefficient of friction isbiv/p, g 0lsd-:

  09.21: A 20.0 kg box remains at rest on a horizontal*8xt qw mr7f0vcu60 qt surface while a person pushes directly to the righuw7m tc vr80q*f 60tqxt on the box with a force of 60N. The coefficient of kinetic friction between the box and the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially moving at 8 m/s accelerates un8 ,v7xbyo 5jqoiformly to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best represents the coefficient of kinetic friction between the surface and the block?v 8,5 xooj7ybq

  00.21: A car of mass m slidom44v dfyt/6lqow 4j4es across a patch of ice at a speed v with its brakes loo/yjod6f44w q mv4 tl4cked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of q h*k;gw f; vn(p0pl-kice at a speed v with its brakes locked. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction plkkg;- q0pw(*f ;vhn between the tires and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a cyt1a;g.o9v 5l bdcrv(ar makes an emergency stop by slamming on the car's brakes and skidding to a stop. How far would the car have skidded if it ha( 9vgd5 rlvtc. oy;1bad been traveling twice as fast?

  99.39: The driver of an automobile must carefully controg o q,e-od ,lq*ssp fuoa2wvo 2x)1n8:d-pd1hl each of the following devices. Which of these devices can cause an acceleration in a mhne2 ,8x1*lp-1d q,wuo oo:s-2)sdgadqpv ofoving car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight of 15000 3ny+hh 6n-zhdi ,bhf* newtons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 366 -fzn*h hny+3 ,bhdih m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the je1:.el 795ex4bk/ egp ou rmuright across a horizontal floor. A person called Ted exerts a force T to th.jme geu:l1eor7p ub954 exk/ e right on the box. A person called Mario exerts a force M to the left, which is half as large as the force T. Given that there is friction f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster t )fjjul,s62u32edn kc racks of equal length. Assume that on all tracks thenc djs26lu fe )3uk,2j roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below showsjnd 5r(axo) 6bf1 ugraywu, *, three roller coaster tracks of equal length. Assume that on all tracks the roller coaster carts start from rest at the same elevation and moves frictionlessly over the tracks to th,fu56*(wygx ad1r)anu jbor,e finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly along the curved t,uvej tjm lxu(5( -/we, dlcpi),6ferrack from point A to point C under the influence of gravity. What would be the dire l 6d,l-jv(ft i(j)e,,uceep xuwrm5/ ction of the cart's acceleration at point

  02.40: A box with a mass of 50q7- pxz kn )uy+vyr jis3p2b2( kg is dragged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would j2b (q vy)rups2i3+ pynk7xz -be closest to the coefficient of kinetic friction between the box and the floor if a 250 newton force on the rope is required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wall49tli9bl:l u g by a 100 N force as shown. Thecoef9 49lblg:l ituficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the friction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizontal patch of grass wit y4nwi ;x*x a7,wmpbj1dq j5;bh a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, aw *p17;x4j ywj, n5xb ibdqm;P is CORRECT?

  06.14: A book leans against a crate on a tabl.(xmj0+cweqj3m6qbw e. Neither is moving. Which of the following statemen( m+wqjj6bc.0mw 3 xqets concerning this situation is CORRECT?

  06.15: A crate of toys remains at resmj tyy0d nu1(+t on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate is nut0n+j( yy1dmot fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?